throw errors for things like double action operators, double ## #?#

[RedDragonWebDesign]

! per ublock documentation
example.com##+js()

! can't have things twice
example.com##test#?#test:style(position: absolute !important;)
example.com#?#test##test:style(position: absolute !important;)
example.com##test:style(position: absolute !important;):style(position: absolute !important;)
example.com#?#test:style(position: absolute !important;):style(position: absolute !important;)
example.com##test#@#test
example.com##test#?#test
example.com#?#test##test

! action operators :style() and :remove() are not allowed to be applied in many cases
example.com##^.badstuff:style(position: absolute !important;)
example.com##^.badstuff:remove(position: absolute !important;)
example.com#@#^.badstuff:style(position: absolute !important;)
example.com#@#^.badstuff:remove(position: absolute !important;)
example.com#@#.badstuff:style(position: absolute !important;)
example.com#@#.badstuff:remove(position: absolute !important;)
tribunnews.com##+js(acis, Math, ='\x):style(position: absolute !important;)
test.com$websocket:style(position: absolute !important;)
audiofanzine.com#$#abort-on-property-read TextDecoder:style(position: absolute !important;)